Spin-Sensitive Bleaching and Monopolar Spin Orientation in Quantum Wells

S. D. Ganichev, S. N. Danilov, V. V. Bel'kov, E. L. Ivchenko, M. Bichler, W. Wegscheider, D. Weiss, and W. Prettl
Phys. Rev. Lett. 88, 057401 – Published 15 January 2002
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Abstract

Spin-sensitive bleaching of the absorption of far-infrared radiation has been observed in p-type GaAs/AlGaAs quantum well structures. The absorption of circularly polarized radiation saturates at lower intensities than that of linearly polarized light due to monopolar spin orientation in the first heavy-hole subband. Spin relaxation times of holes in p-type material in the range of tens of ps were derived from the intensity dependence of the absorption.

  • Received 13 July 2001

DOI:https://doi.org/10.1103/PhysRevLett.88.057401

©2002 American Physical Society

Authors & Affiliations

S. D. Ganichev1,2, S. N. Danilov1, V. V. Bel'kov2, E. L. Ivchenko2, M. Bichler3, W. Wegscheider1,3, D. Weiss1, and W. Prettl1

  • 1Institut für Experimentelle und Angewandte Physik, Universität Regensburg, D-93040 Regensburg, Germany
  • 2Ioffe Physico-Technical Institute, RAS, 194021, St. Petersburg, Russia
  • 3Walter Schottky Institut, TU München, 85748, Garching, Germany

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Vol. 88, Iss. 5 — 4 February 2002

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